Answer:
The correct answer is option B. Anya will spend a greater proportion of her sleep time than usual in the REM stage. This phenomenon is called rebound.
Step-by-step explanation:
The acronym REM is equivalent to Rapid Eye Movement, which is what happens during REM sleep. The eyes go quickly in several directions.
In a REM rebound stage that characteristic occurs after facing periods of sleep deprivation, as is the case of Anya. Here you face an increasingly longer frequency and depth of sleep.
If a person is deprived of sleep for a certain period of time, the pressure to get sleep will be higher, and when that person finally manages to sleep, the percentage of sleep will increase.